#include <bits/stdc++.h>
using namespace std;
int n,a[100010],b[100010],cnt;
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
       cin>>a[i];
    }
    for(int i=1;i<=n;i++)
    {
       if(a[i]<a[i+1])
       {
           a[i]=a[i+1];

       }
    }

    for(int j=1;j<=n;j++)
    {
       if(a[j]>a[j+1]) cnt++;
    }
    cout<<cnt;
    return 0;
}

